Goodwill and Other Intangible Assets Goodwill (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

The gross carrying amount of goodwill and other intangible assets and the related accumulated amortization for intangible assets subject to amortization and accumulated write-offs of goodwill are as follows:

	As of March 31, 2019					As of December 31, 2018
(in millions)	Gross Carrying Amount		Accumulated Amortization/ Write-offs			Gross Carrying Amount		Accumulated Amortization/ Write-offs
Amortizable intangible assets
Technology-related	$	10,081	$	(5,327	)	$	10,197	$	(5,266	)
Patents	521		(397		)	520		(393		)
Other intangible assets	1,656		(987		)	1,666		(958		)
	$	12,258	$	(6,711	)	$	12,383	$	(6,617	)
Indefinite-lived intangible assets
Goodwill	$	18,079	$	(9,900	)	$	17,811	$	(9,900	)
IPR&D	781		—			486		—
Technology-related	120		—			120		—
	$	18,980	$	(9,900	)	$	18,417	$	(9,900	)

Schedule of Goodwill [Table Text Block]

The following represents our goodwill balance by global reportable segment:

(in millions)	MedSurg			Rhythm and Neuro		Cardiovascular			Total
Balance as of December 31, 2018	$	2,063		$	1,924	$	3,925		$	7,911
Impact of foreign currency fluctuations and other changes in carrying amount	(2		)	—		(1		)	(2		)
Goodwill acquired	—			—		271			271
Balance as of March 31, 2019	$	2,061		$	1,924	$	4,195		$	8,179